TDI · SDI · Technical
Technical diving & self-reliance
The courses that take you past recreational limits: more gas, planned decompression, and the skills to handle it yourself. Small groups, or 1:1 if you prefer.


Advanced Nitrox
Nitrox from 21% to 100% oxygen. The foundation for every technical course.
$875 · 1:1 +$400TDI · TechnicalDecompression Procedures
Planned, staged decompression diving to 45 m.
$875 · 1:1 +$400TDI · TechnicalAdvanced Nitrox + Decompression Procedures (combined)
Both courses together in six dives, saving $175 on taking them separately.
$1,575 · 1:1 +$500SDI · SpecialtiesSolo Diver
For experienced divers who want to plan and dive independently, with their own redundant air supply.
$450Where to start
Most divers begin with Advanced Nitrox and Decompression Procedures, taken together. That combination is also a direct route into the Poseidon decompression and Helitrox courses.
Solo Diver stands on its own. It's for experienced divers with 100 or more logged dives who want to be fully self-reliant.
Not yet on nitrox? Start with TDI Nitrox Diver ($229).

Questions about technical diving? Read the FAQ →
Not sure you meet the prerequisites?
Send me your certifications and roughly how many dives you've logged, and I'll tell you the shortest safe route.